Granted Patent
Utility
US 6,515,541 · App. 09/880,286
Multi-level power amplifier
Inventors:
Naishuo Cheng, Kevin Choi, Mark S. Bloom
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Jun 13, 2001
Inventors
Naishuo Cheng
Kevin Choi
Mark S. Bloom
Assignee (at issue)
Skyworks Solutions, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.